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C. M. LAMB. WIRE FENGE MACHINE.

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C. M. LAMB. WIEE FENCE MACHINE.

No. 534,893. Patented Feb. 26, 1895.

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C. M. LAMB. WIEE EENGE MACHINE.

No. 534,893. Patented Feb. 26, 1895.

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. No. 534,893. Patented Feb. 26, 1895.

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CHARLES M. LAMB, OF ADRIAN, MICHIGAN, ASSIGNOR TO THE PAGE WOVEN WIRE FENCE COMPANY, OF SAME PLACE.

WIRE-FENCE MACHINE.

ESPECFCATION forming part Of Letters Patent N0. 534,893, dated February 26?, 1895.

Application led July 13.1894. Serial No. 517,463. (No model.)

.To all whom, t muy cocccrn.- g

Beit known that I, CHARLES M. LAMB, a citizen o f the United States, residing at Adrian, in the county of Lenawee and State of Michigan, have invented a new and useful Improvement in fire-Fence Machines, of which the following is a specification.

My invention relates to improvements in the machine for` making' wire-fencing for which Letters Patent of the United States No. 414,844 were issued jointly to me and John Wallace Page on the12th day of November, 1889.

The object of my present invention is ma` terially to simplify and generally to improve the construction and operation of the mechanism of the aforesaid patented machine, especially in the particulars of automatically actuating the coilers to perform their ceiling function on the warp-wires; of the tensiondevice for controlling the finished fence on its way from the warp-wire winding and stringing device to the take-up; of the Woof-wire Winding and stringing device and its actuat` ing means; of the warp-wire feed from the spools to the point of stringing the Woof-Wire; and of the take-up.

The generally stated operation of the inachine provided with my present improvements is substantially the same as that of the aforesaid patented machine-that is to say, the warp-wires are fed from spools to the take-up mechanism, which winds upon it the finished product of the machine and is actuated in termittingly to take up lengths thereof, and alternates with a Woof-wire winding and Stringing device actuated, when a finished length of the fencing has loeen taken up, to travel transversely across the Warp-wires, stopping at each and winding around it, by a species of weaving operation, a woof-wire, with which the device is threaded. Moreover, as in the machine constructed in accordance with the aforesaid patent, when it is employed for manufacturing the sinuous construction of fencing, each of the warp-wires isiirst coiled throughout a suitable portion of its length prior to actuating the woot-wire winding and Stringing device to wind the woof- Wire around each warp-wire, and, in doing so, to string the woof-wire across the warp-wires justin advance of the termination of each coil; and when the Woof-wire has been thus applied, the coilers are relieved of the warpwires, and the feed is actuated to pay from the spools and feed toward the coilers a predetermined length of warp, to .the extent of which feed the take-up winds upon itself the finished length of the fencing.

My improved machine is illustrated in ali its details in the accompanying drawings, in which- Figure 1 shows the machine luy a View in side elevation. Fig. 2 is a similar view of the same,but presenting the opposite side of the machine; Fig. 3, a longitudinal vertical section taken at. the line 3 on Fig. 4 and viewed in the direction of the arrow; Fig. 4, a broken plan section taken at the line 4 on Fig. 3 and viewed in the direction of the arrow; Fig. 5, a broken section, taken at the line 5 on Fig. 9 and viewed in the direction of the arrow; Fig. 6, a broken section taken at the line (i on Fig. 3 and viewed in the direction of the arrow; Fig. 7, a broken view showing, in front elevation, the primary hand-operated controlling means for the Woof-wire winding and stringing device; Fig. 8, a broken view showing, in plan, the clutch-device for reversing the direction of travel of the shuttle; Fig. 9, a section taken at the line 9 on Fig. 5 and viewed in the direction of the arrow; Fig. 10, a View showing the main shaft in section loosely carrying a belt-pulley having a central dish-head from the inner face of which project studs for operating the spring-abutment on the cam-gear actuating pinion; Fig. 11, a section taken at the line 1l on Fig. 14 `and viewed in the direction of the arrow. Figs. 12 and 13 are per- `view of the pinion for actuating the coiler and tension mechanism; Fig. 19, a sectional view showing in elevation the inner face of the cam gear-wheel on its shaft, foractuating the coil- IOO ers, the clamp-feed and the take-up, and showing its cam-connection with a reciprocating clamp actuating bar; Fig. 20, a broken section. taken at the line 2O on Fig. 21 and viewed in the direction of the arrow; Fig. 21, a broken plan section showing the rear trip-mechanism of the clamp-feed device; Fig. 22, a section taken at the line 22 on Fig. 21 and viewed in the direction of the arrow; Fig. 23, an enlarged section of the forward half or portion of the machine taken at the line 23 ou Fig. 4 and viewed in the direction of the arrow; Fig. 24, a section taken at the line 24 on Fig. 23, and viewed in the direction of the arrow; Fig. 25,a View of the outer or forward end of the needledevice; Fig. 2G, a section taken at the line 26 on Fig. 23 and viewed in the direction of the arrow; Fig.27, a section taken at the line 27 on Fig. 29 and viewed in the direction of the arrow,showing the mechanism of the Woof-wire winding and Lstringing device or shuttle; Fig. 28, a broken view of the needle-rotating beveled gear showing the spring-stop or abutment thereon; Fig. 29, a section taken at the line 29 on Fig. 27 and viewed in the direction of the arrow; Fig. 30, a section taken at theline 30 on Fig. 27 and viewed in the direction of the arrow, but showing the lower jaw of the shuttle in its raised position; Fig. 31, a section taken at the line 3l on Fig. 27 and Viewed in the direction of the arrow, but showing the lowerjaw of the shuttle in its raised position; Fig. 32, a section taken at the line 32 on Fig. 29 and viewed in the direction of the arrow; Fig. 33, a broken perspective View showing the bell-crank lever for raising the lower jaw of the Woof-wire winding and Stringing-device and the trip-finger for dropping it; Fig. 34, a diagram-section taken at the line 34 on Fig. 27 and viewed in the direction of the arrow; Fig. 35, a broken section taken at the line 35 on Fig. 30 and viewed in the direction of the arrow; Fig. 36,a perspective View, in the nature of a diagram, showing the forward slack and tension device for the fencing, as it becomes completed, the connection thereof with the primary operating handle and of .the latter with the trip-mechanism for releasing the cam-gear which thereupon actuates the coilers, the feed and the take-up; Fig. 37, a broken view in elevation, partly sectional, showing the rack and pinion mechanism for operating the coilers; Fig. 3S, a broken section, taken at the line 38 on Fig. 4, viewed in the direction of the arrow and enlarged, and showing the automatic take'up compensating device; Fig. 39, a broken section taken at the line 39 on Fig. 4, viewed in the direction of the arrow and enlarged; Fig. 40, a section taken at the line 4() on Fig. 38 and Viewed in the direction of the arrow; Fig. 41, a View in elevation of a cam-slotted head for holding in place the divided nut of the aforesaid comF pensating device; Fig. 42, a broken plan view of one side of the guide for the fencing to the take-up; Fig. 43, a longitudinal section of the take-up drum, taken at the line 43 on Fig. 4,

viewed in the direction of the arrow and enlarged; and Fig. 44, a section taken at the line 44 on Fig. 4, viewed in the direction of the arrow and enlarged.

A is the frame of the machine, shown as of general rectangular form and adapted to support the various parts.

B is the main shaft, journaled in suitable bearings on the opposite sides of the upper portion of the frame near its front end and carrying a belt-pulley tu, at which to connect it by a belt w with an overhead driving-shaft (not shown). B is a counter-shaft similarly journaled in the frame A, but on a lower piane than and in advance of the shaft B; and it carries the large gear-wheel T having formed on its inner face a cam-guide orgroove T extending about the shaft, and on its'hubportion a mutilated, or half, beveled gear T2. (See Fig. 19.) This hub-gear T2 has a brakeshoulder and meshes with a beveled pinion T3 having a brake-shoulder T11 (Fig. 18) to cooperate with that on the hub-gear and is supported on a short rotary shaft T4 supported in suitable bearings to extend horizontally lengthwise of the machine toward the forward end thereof and carrying, to rotate with it, a cylindrical head T5 (Fig. 16) provided on its face with a segmental eccentric abutment T6,

the shaft also supporting, loosely, a hollowcylindrical head T7 (Fig. 17), adapted to envelop the head T5 and containing an internal segmental eccentric abutment T8,- and the head T7 has a sleeve-extension T9 terminating in a crank-arm T10. rlhis crank-arm T10 is connected, by a link q (see particularly Fig. 36) through the medium of an adjustable sleeve q2, with a horizontal rod q, extending transversely of the machine at, or parallel with, its front and connected from one end, by a link g3, with an operating handle, or lever, Q4, fulcrumed at C is a tension-device located at the front end of the machine and comprising a series of cylindrical and preferably tubular bars if, t', t2, t3 and t, journaled at their opposite ends to extend, approximately, in the arc of a circle, in end-pieces t5 and t6 provided with suitable bearings and which are journaled, near their longitudinal centers, by a shaft or trunnions 157, in opposite sides of the frame A below the rod q. The right-hand end of the rod q is fastened in a movable head g5 connected by a link Q6 with a crank-arm o3 on a rockshaft 'v2 carrying a bell-crank fu connected from one arm by a link c4 with the end-piece t nearits inner end, and from its opposite arm, by a link-rod o5 with one arm of a bellcrank fu on a rock-shaft c6 journaled adjacent to the end-piece t5; and the other arm of the bell-crank o is connected by a link c? with the end-piece 155 near its inner end.

As shown most clearly in Figs. 3 and 36, the approximately arc-shaped end-pieces 't5 and G are reinforced by brace-rods t8.

It will be seen that when, bymanipulating the handle g4 to turn it in the direction indi- IOO IIO

IIS

cated by the arrow on Fig. 36, the rod q is pulled accordingly, the crank-arm @3 will be tilted to rock the shaft o2 and Vits bell-crank o, and, through the medium of the link-rod c5,

also the bell-crank fu', in the direction forA tilting the device C backward, (or toward the rear end of the machine) on its trunnions t7; and that turning the handle g4 in the opposite direction accordingly returns the device to its normal position, in which it is represented in the drawings. This backward tilting of this tension-device has, as will hereinafter be explained, the effect of slackening the warp-wires that pass about it on their way from the feed-spools to the take-up device, to permit the latter to take up the slack; and it is attended with the operation of the coilers in theirdirection of rotation to uncoil from them the warp-wires. As in the said formerly patented machine coilers D may be provided, at the distances apart corresponding with the warp-wires W. Each coiler comprisesa rod p journaled in a suitable bearing in the forward end of the machine to extend backward at an upward inclination corresponding, at least approximately, with the downward inclination toward it of its warpwire, and carrying at its inner or rear end a iinger p2 extending at a right-angle from it, and at i-ts outer end a pinion p', all the pinions of the several coilers meshing with a horizontal rack p3 supported above the pinions to extend and be reciprocated transversely across the front end of the machine and connected at one end, for reciprocating it, with the head g5. Thus, as will be seen,

i when the handle qtis turned in the direction indicated by the arrow on Fig. 36, a further result than that of tilting backward the tension-device C for the consequent slacking effect on the Warp-wires, is to turn the coilers D backward, or in the direction of uncoiling the wires W from them. It remains to be seen how, according to my improvement, the coilers may be thereafter actuated automatically in the opposite direction to coil upon them the warp-wires.

On the outer right-hand end of the shaft B, which rotates continuously in one direction, is loosely journaled a secondary beltpulley to2 connected by an endless belt w3 with a pulley on the overhead driving-shaft (not shown); and at the center of the pulley w2 is a disk-head u# provided on its inner face with inward projecting rollers @U5 on studs, shown as three in number at equal distances apart ou a circle described about the center ofthe disk. Also loosely on the shaft Libetween the pulleys w and wz, is a pinion o (see Figs. 5 and 14) meshing with the gearwheel fr and provided with a head o at its outer end, containing a peripheral recess o2 in which is pivotally supported a spring-controlled abutment o3 having a lateral rib o4 terininatinginadepending heado5,the abutment terminating at its forward end in a head 06. The normal tendency of thespring 07, which controls the pivotal abutment o3, is to maintain it in a position wherein it presents its head o5 to the path of the studs w5 on the rotating pulley wg, whereby the one which strikes the head first will rotate the pinion o and thus revolve the gear r. The abutment is normally forced out into the position in `which it is illustrated in Fig. 9, (wherein its head o5 and rib o4 are below the path of the studs ws, so that the latter clear the abutment and thus avoid rotating the pinion o) by an eccentric finger it ou a rock-shaft 1t, jonrnaled in suitable bearings on the righthand side of the machine (regarded from its front end) and terminating at its forward end in a fork n2 having a pin-bearing for a universal or ball and piu joint n3 on one end of a rock-shaft n4, which inclines thence downward and forward to a point adjacent to the crankr10 where it is supported in abearing fit-5 and carries a crooked finger 'a6 extending into the path of the crank. When, therefore, the handle Q4 is turned toward the left, as described, to drop the tension-device C and actuate the rack 193 to rotate the coilers D, the crank r10,in its primary partial revolution by such turning of the handle, strikes the finger WG and rocks the shaft n4, and thereby also the shaftn to turn the finger n up out of the path of the spring-abutment 03, the spring o7 of which then immediately withdraws it on its pivot into the recess o2 to present its head 05 to the path of the next adjacent stud 105 rco on the continuously rotating loose pulley to2, which then thus rotates the pinion. o, till it has caused the gear-wheel r to make a complete revolution. After the initial turning of the handle g4 this resultantrctation of the gear-wheel automatically produces the following operations, namely: that of actuating the warp-wire feed, hereinafter described, to feed to the coilers D a predetermined length of the warp-wires, and simultaneously that of actuating the take-up drum E (most clearly shown in Fig. 43) to rotate through a sufficient portion of a revolution to wind upon itself the same length of the iinished article as the length of additional warp-wire fed to the coilers, and, while thetake-up is so operating, gaging the extent of its rotation according to its increase in diameter by the accu mulation of windings upon it; then that of comp leting the revolution of the crank rw to with- 1 zo draw the rack p3 to its initial position and, by its return-movement, actuate the coilers D to coil upon them the fed warp-wires; and trip the stop-finger n on the shaft n topresent it again to the abutment o3 when the gear?" has completed its revolution; and while the feed and take-up are so operating, the Woof-wire winding andy Stringing device, or shuttle, is being returned automatically to its initial position whence it may be started by handrelease to perform its function as soon as the coilers have operated to coil upon .them the fed length of the warp-wires.

Following is a description of the various mechanisms and their operations in performing the several functions thus stated:

F (Fig. 4) is the feed for the warp-wires W, which are supplied from spools (not shown, but the same as in the aforesaid former patent). This feed comprises the following construction: Two clamp-supporting bars F and F2,feach of the construction represented in Fig. 23, extend transversely across the machine from one side thereof to the other, the bar F being rigidly fastened at its ends to the top of the said sides, while the bar F2 rests, at its ends, upon the sides of the machine and is adapted to be reciprocated back and forth with relation to the bar F. On each bar is a series of abutting clamps m (see Fig. 26) each squared in cross-section at the sides near its base and reducedin diameter thence upward, so that when the clamps abut at the sides of their base-portions, interstices m are afforded between them extending throughout about one-half their vertical thickness to permit enlargements or joints (like the joint m2 shown in Fig. 23) formed in the warp-wires W to pass readily between the clamps and thus avoid obstructing the operation of the machine. Along the rear side of each clamp-bar F' and F2 it is undercut, as indicated at u in Fig. 23, to rcceive, and confine each clamp m at, a tongue m2 projecting backward from the base of the clamp, the opposite end of the clamp having a bearing m4 extending forward from it, at which it rests in a guide-offset u in the opposite side of the clamp-bar. At one end of the series of clamps m on each bar F and F2 (namely the end at the left-hand side of the machine regarded from the front) it carries a transverse bearing m5 for set-screws 'm6, by which to adjust the clamping force of the clamps; and of the clamps m on the bar F', that at the opposite end of the series has pivotally connected with it a horizontally extending lever m7 carrying at its outer end a backward projecting cam-head m9, while the corresponding clamp on the bar F2 has pivotally connected with it a similarly extending lever ms carrying at its outer end a forward projecting cam-head m10.

In each side of the frame A is a longitudinal slot y (Fig. 20) having pivotally supported in it a spring-controlled dog l, which extends from its pivotal end underneath the top of the frame-side and protrudes at its hook-end Z through a coincident slot y (Figs. 4 and 20) in said side and is adapted to obstruct the bar F2 at its forward edge; the spring-dog being provided at its forward end with a downward and laterally extending leg Z2 terminatingin an outward projecting forward-inclined foot Z3. On the right-hand end of each of the clamp-bars F and F2 it is provided with a bearing h4, the one having a lever 7c pivoted between its ends to the bearing and carrying at its inner end a backward-projecting cam head k2 opposed to the cam-head fm2, and the other bearing 7a4 having a lever 7c pivoted thereto between its ends and carrying at its inner end a forward-projecting cam-head 7c3 opposed to the cam-head m10. It is to be observed that these levers carrying the opposing cam-heads are in the nature of toggles, and afford cam-levertighteners for the clamps m-that is to say when the cam-heads are brought to their relative heel-abutting positions shown on Fig. 4 of the heads k2 and 'm9, the clamps m controlled by them are released and allowed to be sprung apart by the resilience of the wires W extending between the clamps and which wires, to afford the desired resiliency in them, should be directed into the interstices 'm' at a very slight lateral angle (so slight that it can not be represented in the scale observed in Fig. 4); and when the cam-heads are brought to their relative toeabutting positions shown of the heads 7c3 and m10, the clamps m controlled by them are tightened against the warp-Wires.

The purpose is to tighten the clamps on the bar F2 and move it forward to feed the warpwires between the clamps on the bar F while they are spread apart or released, then to tighten upon the wires the last-named clamps while the bar F2 returns to its initial or normal position, thus to prevent the possibility of its dragging backward on the warp-wires; and when the bar F2 has reached its rearmost position of rest, its clamps are to be tightened against the wires, thus to be prepared for the next wire-feeding operation, and the clamps m on the bar F released for the same purpose. To these ends the reciprocable bar F2 is connected from one end by a pitman t', (see particularly Figs. l and 4) having a slotted head t" at which it engages the bar, with the gear-wheel r at an eccentric pivot-bearing 2 on its outer face, two of which pivot-bearings are shown differentially eccentricto the axis of the gear-wheel to vary, at will, the extent of throw of the pitman and thus the extent of feed of the wire. A similar pitman-connectioni is shown in Fig. 4 at the opposite end of the clamp-bar F2 with a crank on the adjacent end of the shaft B of the large gearwheel, the crank having two pivot-bearings t2 to correspond with those on the wheel r. The cam-groove r', or cam-guide on the' inner face of the gear-wlieel r engages a thimble h4 on the adjacent end of a bar h reciprocably supported on the side of the frame A and provided in its upper side near the forward end with a socket h (see Figs. 4 and 19), in which is confined the outer end of the cam-lever k, and with an abutting-head h2 extending backward from the socket, the bar 7?, being provided near its opposite end, where it extends backward beyond the outer end of the carnlever with a forward projecting abuttinghead h2.

When the wheel r begins to rotate, it first takes up the slight lost motion in the slotted heads of the pitmen t' and employs it to bring downward projecting studs t5 supported on the inner sides of the pitmen to bear against IOO IIO

the feet Z3 of the dogs Z, thereby depressing them from the path of the clamp-bar F2. Then, by the time the studs t5 have cleared the feet Z3, the pitmen will have advanced the clamp-bar over the plane of the dogs; and they continue to advance it to the end of the forward throw of the pitmen, thereby accordingly feeding the warp-wires XV. At the end of this forward throw the cam-guide r', owing to its form, illustrated, begins to force the bar 7L backward and continues the movement thereof till the engagement of the socket h turns the lever 7c, and, through the abutting cam-heads 7a2 and m9, the lever m7, to force the clamps on the bar F together to tighten them against the warp-wires; and just as these clamps are so tightened, the abutting-head h2 strikes the end of the lever 7c on the then advanced bar F2 and throws it back, thereby, through the consequent coaction of the camheads 7a2 and m10, turning the lever to loosen the clamps m it controls and permit the backstroke of the pitmen t', in the continued rotation of the wheel r, to freely return the clam pbar F-2 to its normal rear position, where it remains temporarily at rest owing to the stoppageof the wheel r by a trip-lug e, on its inner side near the periphery (see Fig. 19) encountering the crank-linger n to turn it, by its rock-shaft n, into the path of the springabutment 02 on the loose pinion o, thereby removing the abutment out of the path of the studs tus on the loose pulley rc2; but just before the stoppage of the gear-wheel r, and immediately after the clamp bar F2 has reached its rearmost position, the cam-guide r operates onthe thirnble h4 to return the reciprocable bar h to its forward position, in reaching which the socket h', by its engagement with the cam-lever 7e, turns it to release or loosen from the warp-wires the clamps on the bar F while, simultaneously, the abutting-head h2 strikes the cam-lever 7c and throws it forward, thereby tightening the clamps m on the bar F2 against the warpwires, thus preparing it to feed them, as already described, again when the wheel r is again brought into action. This continued movement of the bar h after the clam p-bar F2 has reached its rearmost position of rest, is, of course, produced bythe final portion of the rotation of the gear-wheel r, which necessarily continues the backward `throw of the pitmen i; but this is taken up by the elongated slots i; in their heads, so that the rear clampbnr is not disturbed or strained thereby.

Simultaneously or about simultaneously with the feed of warp-wires XV by the advancement of the rear clamp-bar F2, the takeup drum E is actuated. The construction of this drum is very similar to that of the same part shown and described in the aforesaid patent. It comprises two disk-heads E and E2 suitably journaled in the sides of the frame A, the journal of the head E being screwthreaded, as clearly shown in Fig. 43, and adapted to be turned by a crank to move the head back and forth with relation to the other head for the purpose of freeing and compressing the ends of the bars E3, respectively to collapse and tighten the drum,the body of which is formed by these bars, they having the shape, in cross-section, of segments the ends of which are confined between circular concentric flanges s on the inner faces of the heads; and the edges of the segmental bars are matched to fit one against the other in a manner to afford a cylindrical surface to the drum.

The take-up drum journal on the head E2, which is provided with a circumferential ratchet s', is turned, beyond the head, to a right-angle to form a crank-arm E4 (Figsrl and 38) carrying a sliding head g connected by a pitman t with the end of the reciprocable clamp-bar F2 at which the slotted head of a pitman t' is attached. At the outer end of the arm E4 it carries a stationary bearing g for one end of a threaded shaft g2, on which end is provided a beveled gear g2, theopposite end of the shaft working in a cylindrical transversely divided nut gL supported to oscillate in a rear extension of the sliding head g, and held byva disk-head g5 having a handle g and provided at opposite sides of its center, where it `has a perforation g?, with oppositely curved cam-slots g8. The head g5 seats at its center Q7 over a stud-projection g9 on the outer end of the extension of the sliding head g and is fastened by the head of a set-screw glo inserted through it into the studprojection; and pins gl1(Fig.4O) extend at right-angles from the nut-sections, one from each, 4through enlarged openings Q20 in the rear extension of the bearing c, and enter the cam-slots g2 on the head g5, turning of which in one direction thus forces the nut-sections endwise toward each other, to hug the screw g2, while turning the head in the opposite direction spreads the nut-sections apart to free the screw. On the head g is journaled, in suitable bearings, abeveled gear Q12 in mesh with the beveled gear g2 and backed byacircuin ferential ratchet gw; and on the shaft of the beveled gear 912 is loosely journaled a rock ing arm g14 carrying a spring-dog Q15 (Fig-39) to engage the ratchet for turning the gears` the ratchet being stopped by a spring-dog g16 supported on an extension of the head g. At the rear end of the rocking-arm gmis pivoted one end of a link gpivotally connected at its opposite end with a threaded eye-bolt Q12 adjustable by means of clamp-nuts in a rigid bearing gli on the frame A.

The rear end of the side of the frame Ain which the head E2 of the take-up drum E is journaled is turned inward to afford a bearingffor pivotal dogsf engaging the ratchetteeth s on that head to stop back-turning of the drum, the dogs being yieldingly held in engagement with the ratchet-teeth by springs f2 on stoms f3 (see Fig. 44) controlled by a cam-headf4 having a handle f5 and by which `to retract the dogs f from the ratchet when IOO IIO

it is desired to reverse the take-up drum-an operation only performed, and then slightly, preparatory to severingits accumulated windings of the finished fencing from the fencing still on its way to the drum. On the journal of the head E2 of drum E is tightly fastened a spring-dog carrying head E5 to turn withthe journal and engage its dogs with the ratchet s to turn forward the take-up drum by each forward stroke of the pitman t.

The mechanism described as connected with the arm E4 affords a species of compensating device for the increasing diameter of the take-up. It is to be remembered that the feed F feeds with each operation the same length of warp-wires, so that only a corresponding length of the finished article of the fencing can be taken up each time; and the extent of turning of the drum E through a part of a revolution may not be the same each time the take-up is actuated, for, as the drum increases in diameter by the accumulation upon it of the finished fencing, it requires to be turned less and less for always winding the same length of the finished article. If, therefore, the pitman 6 were caused to describe always ilie same extent of stroke by being connected permanently with one point on the arm E4, there would never be variation in the forward turning or throw of the takeup drum E. As it is, however, by each advance of the clamp-bar F2 (producing the f-or ward stroke of the pitman i5), the forward turning of the upper end of the link g1T on a different center from the center of rotation of the drum rocks the bearing Q44 forward and causes its dog Q15 to correspondingly turn the ratchet Q43 and beveled gear Q42, thereby turning the beveled gear g3 and the screw-shaft g2 in its nut g4 to raise the head g sufficiently to decrease, in proportion to the increase in diameter of the drum E, the extent of forward throw, by the forward stroke of the pitman i6, of the forward turn of the arm E4 and, with it, that of the dog-carrying head E5 (owing to its being on the journal of which the arm E4 is a part) to turn the take-up drum. Thus, as will be seen, each forward stroke of the pitman t slightly raises the head g to bring the outer end of the arm E4 nearer and nearer, as it were, at the beginning of each of its forward throws, to the end of the'forward stroke of the pitman, whereby the extent of turning of the drum is gradually decreased in, or substantially in, accordance with the increase in its diameter, till, when it has its complement of accumulations upon it of the finished fencing W2, the head g may have been raised nearly-to the upper end of the arm E4. Then, to reset the head for the original diameter of the drum E, when it has been relieved of its roll, (an operation performed as described in the aforesaid patent, by turning the threaded journal of the head E to withdraw the latter and release the bars E3 to permit them to collapse and be pulled out of the roll of fencing) to start afresh the operation of the machine,

the head g5 is turned to spread the nut-sections apart and permit the head g to be slipped down into place at the base of the bend in the arm E4. The rising and falling segmental racks of the patent, referred to, were designed for the same purpose as my present improved compensating device, but are not so effective as the latter, since it enables the winding on the drum E to be of any desired degree of looseness, instead of an increasing tightness toward the center. ln fact, by my improvement, the adjustment may be such as to render the windings toward the center of the accumulations of fencing WW, or those nearest the surface of the drum, looser than the outer ones.

In the first half of the rotation of the large gear-wheel r, starting from the pointl of engagement, represented in Fig. 19, of the thimble h4 with the cam-groove, whence it primarily backs the bar h, by the action of the more expanded section of the cam-groove (the less expanded section, of course, serving to return the said bar) the half-pinion r2 completely rotates the beveled pinion r3 and its shaft r4; but inasmuch as the throw toward the left, at the initial start of the operation of the machine, of the handle g4 has accordingly turned the head T7 and removed its inner abutment some distance in a circle beyond the abutment r6 on the head r5, the shaft r4 will have made part of its revolution before the abutment fr reaches and contacts with the abutment frs. Thus the male and female heads T5 and ri afford what may be termed a lost-motion abutment-device. The coilers D remain, therefore, released from the warp-wires for a short period after so turning the handle Q4, during which period the feed takes place; whereupon the abutment r6 reaches the abutment rs and engages it to colnplete the rotation of the crank T49 to retract the rack p3, turn the coilers in the direction of engaging their end-fingers p2 with the warp-wires and coil the latter about the rods p, as` shown in Fig. 4and raise the tension-device C.

By way of a general recapitulation of the construction and operation of the machine, as thus far described, and of describing incidentally further minor details, the following explanation is given: The warp-wires WV are fed by uncoiling from spools, as in the aforesaid patent (and which may be imagined to be located at the upper end of the inclined plane indicated by the warp-wire presented to view in Fig. 3); and these wires lead over a tension-device G extending backward and upward from the reciprocable clamp-bar F2 to move with it, this tension-device comprising side-arms G affording bearings for the opposite ends of two pair of rollers, G2, G3, aud G4, G5. Thewarp-wires are passed from the spools over the rollers G5 (the end-wires being passed under guides 1 on the roller), thence under the roller G3, thence over the roller G4, and thence under the roller G2. From the lat-ter the wires ICO proceed between the clamps m on the bars F2 and F and under a stationary guide-roller 2 and over guide pulleys 3 journaled in series across the machine near its forward end, be low and in alignment with the upward and backward inclined coilers D, and thence about the tension-device C, from which they proceed backward to and under the take-up drum E, to which their ends are suitably fastened, the wires passing, on their Way to thetake-up, under spur-wheels 4 of a guide H afforded by the spur-Wheels journald on the rear ends of upward and backward projecting arms 5 pivotally fastened at their opposite ends to the lower side-rails 6 of the frame A; so that the weight of the guide H rests, at the spur-wheels 4;, upon the warp-wires, the better to guide the latter. The tension on the wires W ofthe device G tends to straighten them; and in this particular the device G is supplemented by a heavy steel cylindrical roller I resting loosely on the wires .across which it extends transversely between the clamp-bars F and F2 and is free to roll upon them. With the warpwires thus strung, turning the handle q* is followed, as described, by dropping` the forward tension-device C; operation of the feed F and take-np; raising the forward tension-device C to its normal position, and turning the coilers D to wind about their rodsp the warpwires and thus prepare the latter for having wound upon and strung across them a woof- Wire WV.

There should here be described a provision for a slight backward movement of the drum E, which often occurs in practice to a great disadvantage ifnot provided for. The pitch of the teeth of the ratchet s on the head E2 is about one-half inch, so that when the drum is thrown forward by the dogs on the rocking head E5, and then released to be held by the dogs f', the strain caused by the finished fencing not yet wound on the drum has a tendency to turn the latter backward. This slight backward movement ensues whenever the drum is carried forward to a point where one of the dogs f is about to engage one of the teeth on the head F2 but does not quite abut against it, thereby producing a lost motion of nearly a quarterinch, which, if not provided for, would carry with it the clamp-bar F2 with the clamps m clamped against the wire W just before the latter are clamped by the clamps on the bar F by means of the heads 7c2and m2, thereby shortening thenwarp-wires at the top of the finished fence eachtime that this backward movement ofthe drum occurs. To avoid this, the opening in the head of the pitman i, where it connects with the pitman fi, is made in the form of an elongated slot 40 (see Fig. 2l) which should have about three-eighths of an inch play. By this means the pitman 6 can be carried forward the length of the slot t0 by the projection on the inside of the pitman t at the beginning of rotation of the gear-wheel fr before it reaches the end of the slide-bearing in the end of the pitman t', which carries the clamp-bar F2 and feeds the wires WV through between the clamps m on the clamp-bar F. When the clamp-bar F2 has reached the full end of its forward movement and the pitman z' starts on its return-stroke, by the continued rotation of the wheel r, the lost motion in the bearing of the pitman t6 is thus released and the tension of the finished fencingy not yet wound on the drum may draw back any portion thereof necessaryv for one of the dogs f', which may differentiate in length, to engage a tooth of the ratchet without moving or in any way disturbing the clamp-bar F2.

The function of applying the Woof-wires is performed by the woot* wire winding and Stringing mechanism, the general construction and manner of operation of which are similar to those of the aforesaid patent, but differ therefrom in matters of detail.

Directly above the main shaft B is supported a longitudinally reciprocable rod B2 (Fig. 5) having its end nearest the gear-wheel i" pivotally connected with a crank-arm c on a rock-shaft e (Fig. l) supported in suitable bearings to extend parallel with the length of the machiner and having at its forward end a crank-arm e2 connected by a spring e2 with a rigid portion of the frame A; and the opposite end of the rod B2 is supported to slide in a bearing 7 onthe adjacent side of the frame A. Depending from the rod B2 from near one end is a rigid arm e4 bifu rcated at its lower end to straddle the shaft B; and on the rod toward its opposite end is a spring-controlled depending arm e5, while between the arm e5 and the adjacent end ofthe rod B2, rigidly depending from the latter, is a clutchoperating arm e6, engaging at its lower end the circumferential groove in. an ordinary sliding double-clutchdevice c7 on the shaft B. This clutch is iianked by beveled pinions es and c2 loosely surrounding the main-shaft B and meshing respectively with dia|netrically opposite points of a beveled pinion elo on one end of a short rotary shaft en (see Fig. 8) supported in suitable bearings S and carrying at its opposite end a drive-pulle=y @12 for one extremity of an endless horizontally travcling belt K, the opposite extremity of which passes about a pulley cl2 journaled in a pivotal bracket @14 depending from the rock-shaft c and engaged by a set-screw el having its bearing in the adjacent side of the frame A and affording a medium for tightening and loosening the belt K.

When the rod B2 is forced longitudinallyin either direction it causes the arm e to actuate the clutch c7 to produce engagement of one or the other of the beveled pinions c2 ore9 with the main-shaft B, which is constantly rotating in one and the same direction, while the other pinion remains loose on the shaft; and as these pinions are at opposite sides of the center of the pinion when eitheristhusclutched to the shaft it turns the shaft ellin the opposite direction from that in which it is turned when the other pinion is so clutched. It is IOO IIO

thus that provision is made for automatically reversing the direction of travel of the endless belt K for actuating the Woof-wire winding and stringing device or shuttle to travel back and forth across the warp-wires, as hereinafter described. Means are also provided and shown in Fig. 7 for controlling thelongitudinal reciprocation of the rod B2 by hand, comprising a lever d fulcrumed on a sleeve (Z2 having a forward-projecting stem d2 (Fig. 23) at or near the center of the front of the machine, the sleeve being on a stationary rod d extending across it from side to side. From the forward end of the stem (Z5 there depends a breast-plate d3 terminating at its lower end in a segmental head d4 having a tooth (l5 near one end for engagement by a spring-dog d on the lever; and from its upper projecting end the lever d is connected by a rod or link (Z7 with the lower end of the cross-head e2 on the shaft e. By these means,on releasing the dog d6, and turning the lever d toward the left, the rod B2 is forced in the saine direction to clutch the pinion es to the shaft B; and by turning the lever CZ in the opposite direction the rod B2 is correspondingly forced 'lengthwise to clutch the pinion e2 to the main shaft. rlhe arrangement is such, that when the lever d is in the position illustrated in Fig. 7 with the dog d engaging the tooth dlthe clutch e7 is midway between, or inert with reference to, the pinions es and e9, so that then the belt K is at rest.

Listhe Woof-wire winding and Stringing device, or .shuttle, as I term it, and it comprises the following-described construction:

L is the driving-Wheel for the mechanism of the shuttle. It is supported loosely to slide freely on the main shaftB and provided on one face circumferentially with teeth forming a beveled gear L2 having larger teeth c, shown as three in number, at equal intervals apart, and a blank space c', back of which, on the face of the wheel, is an arc-shaped flat raised brake-section c2 for the beveled pinion c2 of the needle-shaft c4 (Fig. 27) hereinafter more particularly described, the pinion also having a flat brake-section c5 to co-operate with the brake-section c2, as indicated by the diagram presented by Fig. 3l. On the opposite face of the wheel L is a cam-groove Lt1 (Fig. 32) for reciprocating the needle to produce the form 0f knot shown and described in the said former patent, there being at one point on the cam-groove a cam-proj ection L3 for a purpose hereinafter described.

On the shaft B is keyed a sleeve or head M having at one end two diametrically opposite earsb extending at right-angles from the sleeve and carrying each a stud b surrounded by a thimble b2 and projecting toward the adjacent side of the wheel L', where it carries a pivotal spring-abutment b3 in a recess in the face of the wheel, and very similar in purpose and construction to the abutment o3 described in connection particularly with Figs. 9, l2 and 13, presenting one end to the path of the studs h when in its normal withdrawn position and its opposite end to a stop iu its normal position, this stop being in the form of a lever, hereinafter described and most clearly shown in Fig. 27.

O is the lower jaw, pivotally mounted at the inner ends of its arms loosely on the mainshaft to bear on the one side of the wheel L conningly againstl the adjacent end of its hub and at the opposite side thereof against the end of the sleeve M. At its outer end, centrally between the arms, the lower jaw O carries a head O (Figs. 24 and 25) having a longitudinal dovetailed recess in its under side to receive and hold reciprocably the correspondingly dovetailed bearing O2 for the longitudinally slotted needle P having the eye d in its outer extremity, into which to insert the end of the coil W3 of Woof-wire WV. This needle is rotatably supported in its bearing to be reciprocated with the latter and is surrounded in the portion of its body within the bearingr by a series of elongated cog-teeth a (Fig. 27) with which meshes a pinion 0,2 having an equal number of similar teeth andan extra larger tooth d3 to enter the slot of the needle in each revolution of the latter, the pinion d2 being fast upon the outer end of the rotary shaft c4, to engage the needle-teeth from above and work in coincident openings in the head O and bearing O2, and the shaft c4 being journaled toward its opposite ends in bearings, as shown, to incline downward toward its forward end.

On the upper side of the lower pivotal jaw O is the upward-projecting concave portion ofV a clamp O3 foi-engaging, with its counterpart, hereinafter described, thelower section of the endless traveling belt K. (See Fig. 6.)

R is the rigid upper jaw represented as two pairs of bent arms extending in opposite dilOO rections, lengthwise of the jaw O, from a depending approximately central body-portion forming the upper depending convex member of the clamp O3, and between the two members of which the lower section of the belt K extends. At the inner ends of the backward extending arms of the upperjaw, they flank the wheel L and are connected with bearings]l on the arms of the lower jaw near the shaft B; and at their outer ends the arms of the upper jaw are .rigidly joined by a cross-barj, from the center of whichthere projects forward a nose l7'2 having pivotally connected with it a kicker-linger R', linked by a yoke R2, from a point between its ends, with the lower jaw, whereby when the latter isiraised, as hereinafter described, thef-ree end of the kicker-iinger is forced forward by the yoke to bear against the coil W3, and is retracted by the drop of the lowerjaw, as and for the purpose hereinafter described.

R3 is abreast-plate, journaled at its lower expanded end, as shown in Figs. 27, 30 and 3l, upon the lower jaw 0 just back of the needle bearing, and having in its upper portion an opening lO and at its upper end a guide-pin IIO 

